socket收发消息
1.socket通讯类 using System; using System.Collections.Generic; using System.Net; using System.Net.Sockets; using System.Text; namespace ConsoleApplication1 { public static class SocketTest { private static Encoding encode = Encoding.Default; /// <summary> /// 监听请求 /// </summary> /// <param name="port"></param> public static void Listen(int port) { Socket listenSocket = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp); listenSocket.Bind(new IPEndPoint(IPAddress.Any, port)); listenSocket.Listen(100); Console.WriteLine("Listen " + port + " ..."); while (true) { Socket acceptSocket = listenSocket.Accept(); string receiveData = Receive(acceptSocket, 5000); //5 seconds timeout. Console.WriteLine("Receive:" + receiveData); acceptSocket.Send(encode.GetBytes("ok")); DestroySocket(acceptSocket); //import } } /// <summary> /// 发送数据 /// </summary> /// <param name="host"></param> /// <param name="port"></param> /// <param name="data"></param> /// <returns></returns> public static string Send(string host, int port, string data) { string result = string.Empty; Socket clientSocket = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp); clientSocket.Connect(host, port); clientSocket.Send(encode.GetBytes(data)); Console.WriteLine("Send:" + data); result = Receive(clientSocket, 5000 * 2); //5*2 seconds timeout. Console.WriteLine("Receive:" + result); DestroySocket(clientSocket); return result; } /// <summary> /// 接收数据 /// </summary> /// <param name="socket"></param> /// <param name="timeout"></param> /// <returns></returns> private static string Receive(Socket socket, int timeout) { string result = string.Empty; socket.ReceiveTimeout = timeout; List<byte> data = new List<byte>(); byte[] buffer = new byte[1024]; int length = 0; try { while ((length = socket.Receive(buffer)) > 0) { for (int j = 0; j < length; j++) { data.Add(buffer[j]); } if (length < buffer.Length) { break; } } } catch { } if (data.Count > 0) { result = encode.GetString(data.ToArray(), 0, data.Count); } return result; } /// <summary> /// 销毁Socket对象 /// </summary> /// <param name="socket"></param> private static void DestroySocket(Socket socket) { if (socket.Connected) { socket.Shutdown(SocketShutdown.Both); } socket.Close(); } } } 2.socket调用,先启用监听程序 2.1 namespace ConsoleApplication1 { class Program { static void Main(string[] args) { SocketTest.Listen(11000); Console.Read(); } } } 2.2 再起客户端 using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.Threading.Tasks; using System.IO; using SocketIM; using System.Net; using System.Net.Sockets; using ConsoleApplication1; namespace ConsoleApplication2 { class Program { static void Main(string[] args) { SocketTest.Send("127.0.0.1", 11000, "www.jb51.net"); Console.Read(); } }